Speed-governor.



No. 866,795. PATENTED SEPT. 24, 1907.

' G. LIDSEEN 6L L. L. BLAKE.

SPEED GOVERNUR APPLICATION FILED SEPT. 18. 19.06.

mlm l El Y IINITED STATES PATENT OFFIOE.

GUSTAVE LIDSEEN AND LUDWIG L. BLAKE, OF CHICAGO, ILLINOIS, SAID LIDSEENASSIGNOR TO SAID BLAKE.

SPEED-GOVERNOR.

No. 866,795.l

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed September 18, 1906. Serial No. 335,078.

To all whom it may concern:

Be it known that we, GUsrAvn LrDsEEN and LUD- WIG L. BLAKE, citizens ofthe United States, residents of Chicago, in the county of Cook and Stateof 5 Illinois, have invented certain new and useful Improvements inSpeed-Governors, of which the following is a full, clear, and exactspecification.

This invention relates to improvements in speed governors or devices ofthat character particularly l adapted for regulating or converting anirregular speed derived from any'source of power into a .regular anduniform power.

A further object is to Construct an improved device of this characterwhich may be set to a pre-determined l speed.

A further object is to construct an improved device of this characterprovided with a plurality of shafts with interposed cooperating clutchmembers carried by the respective shafts,- which will permit one of theshafts to rotate at a greater rate of speed than the other shaft.

A further object is to provide an improved device of this charactercomprising a plurality of shafts with interposed clutch mechanism sodisposed with relation to each other that the two shafts will be drivenlin unison up to a pre-determined rate of speed, and which will permitone of the shafts to rotatel independently of the other to the extent ofany excess rate of speed which may be transmitted to the said shaft.

A further object is to construct an improved device of this character,which will be simple and cheap in construction and effective inoperation.

To the attainment of these ends and the accomplishment of other new anduseful objects as will appear, the invention consists in the features ofnovelty in the construction, combination and arrangement of the severalparts hereinafter more fully described and claimed and shown in theaccompanying drawing illustrating, an eXemplif-ication of the inventionand in whichz- Figure l is an elevation, partly broken away, of agovernor embodying the principles of the invention; Fig. 2 is asectional view on line 2 2 of Fig. l; Fig. 3 is a detail longitudinalsectional view of the movable clutch member and its controllingmechanism; Fig. 4 is a detail sectional view on line 4 4 of Fig. 3.

Referring more particularly to the drawing and in which the samereference characters designate similar parts throughout the severalviews, the numeral l0 designates the supporting standards of a suitableframe provided with bearings ll preferably located at the upper endsthereof. Journaled in the bearing of one of the standards is one end ofa hollow or tubular shaft l2 which projeets inwardly and terminates at apoint substantially midway of the standards. A shaft 13 is journaled inthe bearing in the other standard, and extends loosely through thetubular or hollow shaft l2, and terminates substantially flush with theouter end of the said shaft l2.

A flange or collar I4 surrounds the shaft I3 and is 60 secured theretoadjacent the end of the tubular shaft l2 in any suitable manner, such asby means of a pin or bolt l5. This flange or collar 14 is of a diametersubstantially equal to the diameter of the adjacent end of the shaft l2and serves as a means to retain the 65 two shafts in their relativeposition. The ordinary fast and loose pulleys lG-l7 are secured to theshaft 13, and are preferably located on the outside of the standards. Apulley or belt wheel I8 is provided with a tubular hub 19, one end ofwhich is closed as at 20 70 and provided with an aperture 2l, of adiameter slightly larger than the diameter of the shaft 13, and throughwhich said shaft passes. The inner end of the shaft 12 is adapted toenter the open end of the tubular hub 19, and said hub 19 and aXle l2are secured together 75 in any desired or suitable manner, such as bymeans of a key 22 which is adapted to be seated in coperating grooves orseats 23-24, respectively, in the shaft I2 and the hub 19, and said keyis held from longiv tudinal displacement preferably by means of afastening or securing screw or bolt 25. When in position the fiange orcollar I4 will be located between the closed end of the hub I9 and theend of the shaft 12, and if desired any suitable anti-friction means(not shown) may be interposed between the end 20 of the hub 19 85 andthe end of the shaft l2. The pulley I3 is preferably recessed around thehub I9, as at 26 to form a .clutch face 27.

A sleeve or collar 28 is keyed to the shaft I3, preferably adjacent thestandard on the side of the pulley adjacent the clutchface 27, by meansof a key or pin 28a, and said sleeve or collar is provided with areduced threaded portion 29 adjacent the pulley I8, and mounted forrotative adjustment on this reduced portion is a collar or platel 30which is preferably provided with 95 peripheral Wrench seats 3l, bymeans of which the same may be adjusted for a purpose to be set forth.An adjustable clutch member 32 is provided with a hub 33 which surroundsthe shaft 13 and said member is provided with an active edge 34 adaptedto coper- 100 ate with the edge 27 of the pulley 18. If desired asuitable material 35 may be seemed to the face of one of the clutchmembers, preferably the member 32. The hub 33 is provided with a reducedportion 36 adjacent to and preferably of a diameter equal to thediameter of the reduced threaded portion 29 of the sleeve or collar 28.An expansion spring 37, preferably in the shape of a coil is disposedbetween the hub 33 and the adjustable plate or member 30, with its endsengaging these parts and surrounding the reduced portions 29-36, andsaid spring exerts its strain upon the clutch member 32 to normally holdthe clutch faces 27-32 into operative engagement and with sufficientfriction as to cause the parts to rotate in unison under normalconditions.

The sleeve or collar 28 and the hub 33 are provided respectively with acircumferential groove 38-39, and seated within these grooves arecollars 40-41, preferably provided with a plurality of balls 42, toreduce the friction, and each of the collars are provided withdiametrically opposite lateral projecting lugs or ears 43.

A yoke 44 provided with slots 45 in the arms thereof is adapted tosurround the sleeve or collar 28 in such a manner as to engage and besupported by the lugs or ears 43 on the sleeve or collar 28. The bodyportion 46 projects towards the pulley or belt wheel 18 and terminatespreferably adjacent the clutch member 32. An arm or lever 47 having ayoked end 48 comprising arms is adapted to partially surround the collar41, and said arms are preferably provided with open recesses 49 adaptedto receive the lugs or ears 43 of the collar 33. This arm or lever 47 ispivotally supported as at 50 to the'body portion 46 of the yoke 44, thefree end of said arm or lever projects preferably below the shafts 12-13and terminates in a yoked extremity, the arms 51 of which are providedwith recesses 52.

Journaled in suitable bearings 53 secured to the standard, preferablybelow the bearings l1, is a shaft 54 to which is secured a collar. 55and secured to the collar is a sprocket Wheel 56. A correspondingsprocket 57 of a larger diameter is secured to the shaft l2, and passingaround said sprockets is a chain or belt 58. Loosely mounted upon theshaft 54 is a sliding sleeve or collar 59, and this collar is connectedto the stationary sleeve or collar 55, by means of flexible members orstrips 60, such as springs, and secured to these members, preferablyintermediate the collars 55-59 are suitable weights 61. The sleeve orcollar 59 is provided with a supplemental collar 62 loosely surroundingthe same and provided with laterally proj ecting ears or lugs 62 whichare adapted to enter and stand within the recesses 52.

In operation the collar or plate 30 is first adjusted to secure thedesired tension on the spring 37, and the proper degree of frictionbetween the clutch faces 34 27 according to the speed it is desired todrive the shaft 12 and the pulley 18. The belt (not shown) is shiftedfrom the loose pulley 17 to the fast pulley 16, which will drive both ofthe shafts 12-13. These two shafts Will continue to rotate in unisonuntil the clutch faces are automatically separated. When the shaft 12 isrotated, but at a much greater rate of speed on account of its beinggeared up from the shaft 12 the shaft 54 will also be rotated, As theshaft 54 rotates the governor balls 61 will be thrown out by centrifugalforce against the tension of the flexible members 60, thereby tending todraw upon the collar or sleeve 59 to move the same upon the shaft 54, torock the arm or lever 47. Under normal conditions, the spring 37 willhold the clutch faces 34-27 together to overcome the centrifugal forceof the weights 6l, but when the speed of the driven shaft 12 increasesbeyond the desired speed limit, the extra centrifugal force of theweights 6l will overcome the tension of the spring 37, and will draw thecollar or sleeve 59 along the shaft 54. This action will rock the arm orlever 47 upon its pivot 50 causing the arms 48 thereof to draw theclutch member 33 back to disengage the clutch faces 34-27. The partswill remain in this position until the shaft 12 has acquired the desiredspeed. The spring 37 will then be strong enough to overcome thecentrifugal force of the weights 61, and the arm or lever 47 will drawthe collar or sleeve 59 back along the shaft 54, while the clutch memberwill assume its operative position. Thus it will be seen that thisimproved governor will be automatic in operation and may be used toequalize and produce a steady and uniform power from any irregularsource, the clutch being controlled by the governor, which latterrotates at a greater rate of speed than the uniform power, a moresensitive governor will be produced which will effectively operate theclutch to release the irregular power under varying conditions of theload on the uniform power.

In order that the invention might be fully understood, the details of anembodiment thereof have been thus specifically described, but

What I claim isz- 1. In a device of the class described, the combinationof a driving and a driven shaft, coperating clutch members respectivelyon said shafts, yielding means for normally holding said members inengagement, a governor separate from the shafts and operativeconnections respectively between the governor and the driven shaft andthe clutch member of the other shaft, said governor being adapted tomove said clutch member against the tension of the yielding means topermit the driving shaft to rotate at a greater rate of speed than thedriven shaft.

2. In a device of the class described, the combination of a driving anda driven shaft, coperating clutch members respectively on said shafts,yielding means for normally holding said members in engagement, aIgovernor separate from the shafts, operative connections respectivelybetween the governor and the driven shaft and the clutch member of theother shaft, said governor being adapted to move said clutch memberagainst the tension of the yielding means to permit the said other shaftto rotate at a greater rate of speed than the driven shaft, and meansfor varying the tension of said yielding means.

3.* In a device of the class described, the combination of a driving anda driven shaft, clutch members on said shafts, one of said members beingmovable, a collar secured to the driving shaft, yielding means disposedbetween said collar and the movable clutch member for normally holdingsaid clutch member in engagement with the clutch member of the drivenshaft, a governor separate from the shafts, operative connection betweenthe governor and the driven shafts and between the governor and themovable clutch member for moving said clutch member against the tensionof the yielding means to permit the driving shaft to rotate at a greaterrate of speed than the driven shaft.

4. In a device of the class described, the combination of a driving anda driven shaft, clutch members respectively on said shafts, one of saidmembers being movable with relation to its shaft, a sleeve secured tothe driving shaft, an adjustable collar on said sleeve, yielding meansdisposed between and with its ends respectively engaging the collar andthe movable clutch member for normally holding said movable clutchmember into engagement with the other member, a governor separate fromthe shafts, a connection between the clutch member and the governor, anda connection between said governor and the driven shaft for operatingthe governor to move the clutch member against the tension of theyielding means to permit the driving shaft to rotate at a greater rateof speed than the driven shaft.

5: In a device of the class described, the combination of concentricdriving and driven shafts, coperating clutch members respectively onsaid shafts, a sleeve on the driving shaft, an adjustable collar on saidsleeve, the clutch member on said shaft being longitudinally movable, aspring surrounding' said shaft, the ends of said spring respectivelyengaging the movable clutch member, and the collar for normally holdinglsaid member in engagement with the other clutch member, a governor,independent of the shafts, an operative connection between the governorand the driven shaft, and means operated by the governor for moving themovable clutch member against the tension of the spring to permit thedriving shaft to rotate at a greater rate of speed than the drivenshaft,

6. In a device of the class described,'the combination of concentricdriving and driven shafts, cooperating clutch members respectively onsaid shafts, a sleeve on the driven shaft, an adjustable collar on saidsleeve, the clutch member on the driving shaft being longitudinallymovable, a spring surrounding the shaft and disposed between the collarand the movable clutch member for normally hold ing said member inengagement with the other clutch member, a governor separate from saidshafts, a pivoted lever one end of which is connected to the movableclutch member, the other end being connected to the governor, and anoperative connection between the driven shaft and the governor, wherebythe excess of speed of the driven shaft will operate the governor tomove the clutch member against the tension of the spring.

7. ln a device of the class described, the combination of concentricdriving and driven shafts, cooperating clutch members respectively onsaid shafts, a sleeve on the driv* ing shaft, an adjustable collar onsaid sleeve, the clutch member on the driving shaft being longitudinallymovable, a spring surrounding the shaft and disposed between the collarand the movable clutch member for normally holding said member inengagement with the other clutch member, a governor separate from theshafts, a supporting yoke, a lever pivoted between its ends to the yoke,one end of said lever being connected to the movable clutch member, theother end being connected to the governor', and an operative connectionbetween the driven shaft and the governor, whereby the excess of speedof the last said shaft will operate the governor to move the clutchmember against the tension of the spring,

8. In a device of the class described, the combination of concentricdriving and driven shafts, coperating clutch members respectively onsaid shafts, a sleeve on the driving shaft, said sleeve being providedwith a reduced threaded portion, a collar on said threaded portion, the

clutch member on the last said shaft being longitudinally adjustable, aspring surrounding the threaded portion, one end of said spring engagingthe collar and the other end engaging the clutch member a yoke supportedby the sleeve, a lever pivotally supported by the yoke, one end of thelever engaging the clutch member, a governor sep arate from said shafts,an operative connection between the governor and the other end of thelever, and an op erative connection between the driven shaft and thegovernor, the centrifugal motion of the governor being adapted to rockthe lever to move the clutch member against the tension of the spring topermit the driving shaft to rotate at a greater rate of speed than thedriven shaft.

9. In` a device of the class'described, the combination of a tubularshaft, a clutch member sleeved upon one en d of the shaft, means forsecuring said member to the shaft, a

second shaft passing through the first shaft and projecting beyond theend of the first shaft to which the clutch member is secured, alongitudinally movable clutch member on the second shaft, a sleeve alsoon said shaft, a spring interposed between the sleeve and the last saidclutch member for holding the latter `normally in frictional engagementwith the iirst clutch member, a governor separate from the shafts, anoperative connection between the tubular shaft and the governor, andmeans engaging the movable clutch member and controlled by the governor,adapted to move said clutch member against the tension of the spring torelease the shafts and permit one of the shafts to rotate at a greaterrate of speed than the other shaft.

l0. In a device of the class described, the combination of a tubularshaft, a clutch member sleeved upon one end of the shaft, means forsecuring said member to the shaft, a second shaft passing through thefirst shaft and projecting beyond the end of the rst shaft to which theclutch member is secured, a longitudinally movable clutch member on thesecond shaft, a sleeve also on said shaft, a spring interposed betweenthe sleeve and the last said clutch member for holding the latternormally in frictional engagement with the rst clutch member, a governorindependent of the shafts an operative connection between the tubular`shaft and the governor, a connection between the govenor and the movableclutch member, adapted to move the clutch member against the tension ofthe spring to release said shafts and permit the second shaft to rotateat a greater rate of speed than the tubular shaft, and means foradjusting the tension of the spring to vary the friction of the clutchmembers.

11. In a device of the class described, the combination of a driving anda driven shaft, coperating clutch members respectively on said shaftsfor locking the shafts to rotate in unison, a governor shaft, separatefrom the rst said shafts gearing connecting the governor shaft with thedriven shaft, and means controlled by the governor shaft and engagingthe clutch member on the driving shaft, adapted to unlock the shaftswhen the driven shaft is rotated beyond a predetermined speed to permitthe driving shaft to rotate independently of said driven shaftA 12. In adevice of the class described, the.combination of a driving and a drivenshaft, cooperating clutch members on said shafts, a collar secured tothe driving shaft, a yielding member disposed between the collar and therespective clutch member, a yoke removably engaging the collar, agovernor supported independently of the shaft, a lever pivoted betweenits ends to the yoke, one end of said lever being removably pivoted tothe clutch member on the driving shaft, the other end being pivotallyconnected with the governor, and gearing connecting the driven shaft andthe governor for causing the governor to release the clutches when thedriven shaft is rotated be yond a predetermined speed.

In testimony whereof we have signed our names to this specification, inthe presence of two subscribing witnesses, on this 15th day of SeptemberA. D. 100G.

GUSTAVE LIDSEEN. LUDWIG L. BLAKE. Witnesses J. H. Joer-LUM, Jr., E. C.SnMrLn.

